"If any man lacks the Spirit of God, let him go to work and labor for the advancement of the kingdom of God, and he will have the Spirit of God."

- Heber J. Grant, Teachings of Presidents of the Church: Heber J. Grant, (2011), 183, Chapter 20: The Still, Small Voice of Revelation
http://www.lds.org/manual/teachings-heber-j-grant/chapter-20?lang=eng